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Bug 703645 - rm SRC_LOOPHEAD (r=waldo)

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--HG--
extra : rebase_source : 9301aa0af4e81a8725f05c702145c89a4ece4db6
This commit is contained in:
Luke Wagner 2011-11-22 11:37:57 -08:00
parent 83117ca3ba
commit 80d107697c
2 changed files with 1 additions and 32 deletions
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32
js/src/frontend/BytecodeEmitter.cpp
View File

@ -5538,10 +5538,6 @@ EmitForIn(JSContext *cx, BytecodeEmitter *bce, ParseNode *pn, ptrdiff_t top)
if (jmp < 0)
return false;
intN noteIndex2 = NewSrcNote(cx, bce, SRC_LOOPHEAD);
if (noteIndex2 < 0)
return false;
top = bce->offset();
SET_STATEMENT_TOP(&stmtInfo, top);
if (EmitTraceOp(cx, bce, NULL) < 0)
@ -5592,12 +5588,6 @@ EmitForIn(JSContext *cx, BytecodeEmitter *bce, ParseNode *pn, ptrdiff_t top)
if (beq < 0)
return false;
/*
* Be careful: We must set noteIndex2 before noteIndex in case the noteIndex
* note gets bigger.
*/
if (!SetSrcNoteOffset(cx, bce, (uintN)noteIndex2, 0, beq - top))
return false;
/* Set the first srcnote offset so we can find the start of the loop body. */
if (!SetSrcNoteOffset(cx, bce, (uintN)noteIndex, 0, tmp2 - jmp))
return false;
@ -5679,10 +5669,6 @@ EmitNormalFor(JSContext *cx, BytecodeEmitter *bce, ParseNode *pn, ptrdiff_t top)
top = bce->offset();
SET_STATEMENT_TOP(&stmtInfo, top);
intN noteIndex2 = NewSrcNote(cx, bce, SRC_LOOPHEAD);
if (noteIndex2 < 0)
return false;
/* Emit code for the loop body. */
if (EmitTraceOp(cx, bce, forBody) < 0)
return false;
@ -5737,12 +5723,6 @@ EmitNormalFor(JSContext *cx, BytecodeEmitter *bce, ParseNode *pn, ptrdiff_t top)
return false;
}
/*
* Be careful: We must set noteIndex2 before noteIndex in case the noteIndex
* note gets bigger.
*/
if (!SetSrcNoteOffset(cx, bce, (uintN)noteIndex2, 0, bce->offset() - top))
return false;
/* Set the first note offset so we can find the loop condition. */
if (!SetSrcNoteOffset(cx, bce, (uintN)noteIndex, 0, tmp3 - tmp))
return false;
@ -5908,7 +5888,7 @@ EmitDo(JSContext *cx, BytecodeEmitter *bce, ParseNode *pn)
if (noteIndex < 0 || Emit1(cx, bce, JSOP_NOP) < 0)
return false;
ptrdiff_t noteIndex2 = NewSrcNote(cx, bce, SRC_LOOPHEAD);
ptrdiff_t noteIndex2 = NewSrcNote(cx, bce, SRC_WHILE);
if (noteIndex2 < 0)
return false;
@ -5981,10 +5961,6 @@ EmitWhile(JSContext *cx, BytecodeEmitter *bce, ParseNode *pn, ptrdiff_t top)
if (jmp < 0)
return false;
ptrdiff_t noteIndex2 = NewSrcNote(cx, bce, SRC_LOOPHEAD);
if (noteIndex2 < 0)
return false;
top = EmitTraceOp(cx, bce, pn->pn_right);
if (top < 0)
return false;
@ -6000,12 +5976,6 @@ EmitWhile(JSContext *cx, BytecodeEmitter *bce, ParseNode *pn, ptrdiff_t top)
if (beq < 0)
return false;
/*
* Be careful: We must set noteIndex2 before noteIndex in case the noteIndex
* note gets bigger.
*/
if (!SetSrcNoteOffset(cx, bce, noteIndex2, 0, beq - top))
return false;
if (!SetSrcNoteOffset(cx, bce, noteIndex, 0, beq - jmp))
return false;

1
js/src/frontend/BytecodeEmitter.h
View File

@ -947,7 +947,6 @@ enum SrcNoteType {
SRC_WHILE = 4, /* JSOP_GOTO to for or while loop condition
from before loop, else JSOP_NOP at top of
do-while loop */
SRC_LOOPHEAD = 4, /* For JSOP_LOOPHEAD; includes distance to loop end */
SRC_CONTINUE = 5, /* JSOP_GOTO is a continue, not a break;
also used on JSOP_ENDINIT if extra comma
at end of array literal: [1,2,,];